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Vehicle-mounted expert diagnosis method and system

A technology of expert diagnosis and fault diagnosis, which is applied in the field of expert diagnosis, can solve the problems of wasting labor costs and time costs, and cannot meet the needs of users' intelligence, and achieve the effect of meeting the needs of intelligence and reducing labor costs and time costs

Active Publication Date: 2015-11-25
KUNSHAN BRANCH INST OF MICROELECTRONICS OF CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, this application provides an on-board expert diagnosis method and system to overcome the problems in the prior art that waste manpower cost and time cost for vehicle fault location, and cannot meet the needs of users for intelligence

Method used

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  • Vehicle-mounted expert diagnosis method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1 of the present application provides a vehicle-mounted expert diagnosis method, such as figure 1 as shown, figure 1 It is a flow chart of an on-board expert diagnosis method provided in Embodiment 1 of the present application. The method includes:

[0059] S101: Carry out fault monitoring on the vehicle in real time.

[0060] Specifically, such as figure 2 as shown, figure 2 It is a flow chart of a method for detecting faults of a vehicle in real time provided in Embodiment 1 of the present application. Specifically include:

[0061]S201: Upload CAN bus data to a pre-built buffer loop queue with a preset length.

[0062] In this application, it is necessary to pre-build a buffered circular queue with a length of N to save the scene. The specific length is not limited in this application, and can be set according to actual needs.

[0063] S202: Using the dominant fault bit detection thread to listen to the data in the buffer circular queue, and judg...

Embodiment 2

[0092] On the basis of Embodiment 1, Embodiment 2 of the present application provides another vehicle-mounted expert diagnosis method, which includes such as figure 1 In addition to the steps shown, after storing the fault data and fault occurrence time in the fault list in the form of a list, it also includes:

[0093] The data sources in the fault data that meet the preset time range are stored remotely and locally.

[0094] Specifically, such as Figure 4 as shown, Figure 4 It is a flow chart of an on-board expert diagnosis method provided in Embodiment 2 of the present application, Figure 4 about to figure 1 Step S102 in is replaced by:

[0095] S102: Obtain the fault data and start the timer when the fault is detected, store the fault data and the time of fault occurrence in the fault list in the form of a list, and store the data source of the fault data that meets the preset time range remotely and locally storage.

[0096] During the timing of the timer, if a n...

Embodiment 3

[0110] On the basis of Embodiment 1, Embodiment 3 of the present application provides an on-board expert diagnosis system, such as Figure 5 as shown, Figure 5 It is a schematic structural diagram of an on-board expert diagnosis system provided in Embodiment 3 of the present application. The system includes: a listening module 401, a first storage module 402 and a diagnosis module 403, wherein,

[0111] The listening module 401 is used to listen to the fault of the vehicle in real time.

[0112] Such as Figure 6 as shown, Figure 6 A schematic structural diagram of an interception module provided in Embodiment 3 of the present application, the interception module includes: a buffer cycle module 501, a fault interception module 502, and a judgment module 503, wherein,

[0113] The buffer circulation module 501 is configured to upload CAN bus data to a pre-built buffer circulation queue with a preset length.

[0114] The fault detection module 502 is configured to use the d...

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Abstract

The invention provides a vehicle-mounted expert diagnosis method and system. The method includes the following steps that: fault monitoring is performed on a vehicle in real time; when a fault is monitored, fault data are obtained, and a timer is started, and the fault data and a fault occurrence time point are stored in a fault list in the form of a list; and fault diagnosis is performed on failure equipment to be diagnosed according to the fault list. According to the method, fault monitoring is performed on the vehicle in real time, and when the fault is monitored, the fault data are stored the form of a list, so that an engineer can directly perform diagnosis remotely, and therefore, the root of the problem can be located quickly, and manpower cost and time cost can be greatly decreased, and requirements of users for intellectualization can be satisfied.

Description

technical field [0001] The present application relates to the technical field of expert diagnosis, in particular to a vehicle-mounted expert diagnosis method and system. Background technique [0002] With the rapid development of mobile Internet of Things technology and big data cloud background technology, the information industry is constantly exploring the potential of existing industries. Using the thinking of the information industry to re-upgrade traditional industries will open up new prospects for traditional industries. The future car is a new energy intelligent vehicle dominated by electronic information and software, which is mainly reflected in: self-monitoring and control, information sharing and exchange, unified command and dispatch, automatic driving, new energy, etc. [0003] At present, the vehicle information of automobiles is simply obtained and displayed by some basic automobile CAN bus data, but no comprehensive analysis and deep mining of automobile CA...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0229
Inventor 章军辉刘冬李庆陈大鹏
Owner KUNSHAN BRANCH INST OF MICROELECTRONICS OF CHINESE ACADEMY OF SCI
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